try{
	var iconLeft = document.getElementById("iconLeft");
	iconLeft.onclick = function(){
		go2web();
	}
}catch(e){}

function go2web(){location.href="web.jsp";}

try{
	var iconRight = document.getElementById("iconRight");
	iconRight.onclick = function(){
		go2offline();
	}
}catch(e){}

function go2offline(){location.href="offline.jsp";}

try{
	var mainLogo = document.getElementById("mainLogo");
	mainLogo.onclick=function(){
		go2main();
	}
}catch(e){}

function go2main(){location.href="main.jsp";}

try{
	var sing = document.getElementById("sing");
	sing.onclick=function(){
		go2sing();
	}
}catch(e){}

function go2sing(){location.href="sing.jsp";}

